Re: [patch 0/9] x86, xsave: xsave/xrstor support

["H. Peter Anvin" <hpa@zytor.com>]

Ingo Molnar wrote:
> * H. Peter Anvin <hpa@zytor.com> wrote:
> 
>>> hpa, these patches just apply fine to tip/master. Can you please 
>>> arrange the tip/x86/xsave tree accordingly? or do I need to do 
>>> something else to smooth this process?
>> This is awkward, since that means this is "derived topic".  Most of 
>> the changes are orthogonal and relatively trivial to fix up at merge 
>> time, so I would prefer to keep them separate.
> 
> Well, in this case the conflicts seem to be quite heavy, so i'd suggest 
> to use the method we have used for x86/x2apic and for xen-64bit:
> 
> Merge the affected topics into tip/x86/core. Then merge x86/core into 
> x86/xsave, and put the xsave patches ontop of that base.
> 
> This way x86/xsave is a 'derived' topic and optional until it's proven, 
> but one that is still mergable once all the dependent topics go 
> upstream. We'd only have to rebase it in the (unlikely) event of there 
> being some major problem with any of the topics merged into x86/core.
> 
> ok?

It somewhat concerns me, because one of the conflicts is generated by 
collision with x2apic.  The rest of them I don't think are too problematic.

Most of the conflicts are of the type "orthogonal transformations to the 
same chunk of code", which doesn't make them less annoying.

	-hpa